cpp: test: Reduce number of non-extended tiff tests

Reduce the combinations by a factor of ten.
cpp: test: Header tests are extended tests

Only build when extended tests are enabled.
cmake: Add API stability warning
docs: Document C++ API stability guarantee for 5.2
Correct version embedding
Update Travis to build the 'utils' Ant target
Merge pull request #1413 from rleigh-dundee/cpp-version

C++: Correct version embedding
Merge pull request #1395 from rleigh-dundee/cpp-fixes

C++: Various minor fixes
Merge pull request #1415 from melissalinkert/travis-utils

Update Travis to build the 'utils' Ant target
Update auto-generated documentation

Repository: openmicroscopy/bioformats
Already up-to-date.

Generated by BIOFORMATS-5.1-latest-docs-autogen#192 (http://ci.openmicroscopy.org/job/BIOFORMATS-5.1-latest-docs-autogen/192/)